Swedish epic power metallers SABATON have revealed a bunch of details for the bands upcoming album “Carolus Rex” which will be released May 25 via Nuclear Blast Records.

The lyrics for the CD deal with the Swedish Empire (referring to the Kingdom of Sweden between 1561 and 1721) and are sung entirely in Swedish.

Commented the band: “For the first time ever we have had an expert to help us out with the theme, the well-known Swedish historian Bengt Liljegren. We have also added some extra time in the studio to find the absolute right sound on ‘Carolus Rex’, and our producer, Peter Tägtgren, says that this album will mark a brand new standard for how a heavy metal album should sound like!”

Liljegren’s previously published works include acclaimed biographies of Karl XII among others. He also appeared in the popular Swedish TV series “Boston Tea Party”.